[EN 16798-3:2017, 3.14]:design load condition for pressure drop are: Average of clean filters and recommended maximum pressure drop and for other components (heat exchanger, cooling coil, humidifier, etc.) the average of dry and wet values.
Continue reading →[EN 16798-3:2017, 3.13]:reference conditions for pressure drop are: Clean filters and dry conditions for other components (e.g. heat exchanger, cooling coil and humidifier).
Continue reading →[EN 16798-3:2017, 3.11]:filter pressure drop of clean filters, dry heat exchangers and humidifiers at reference condition.
Continue reading →[EN 12792:2003, 298]:test ratio between the pressure suction effect and the pressure due to an air velocity passing over a cowl or roof outlet.
Continue reading →[EN 12792:2003, 299]:maximum pressure difference at which the rated watertightness is assured under test conditions.
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